NADCO, the trade association for the nation's Certified Development Companies (CDCs), reports the following SBA 504 fixed interest rates for August 2021.

The rates below are those quoted by NADCO. The Base Rate is the base P&I rate of the loan. The Effective Rate includes three servicing fees built into the monthly payment over the full-term of the loan and the closing costs that are added to the loan. The Effective Rate is not an APR. Click here for an explanation of how the interest rates are calculated. Interest rates are typically set on the first Tuesday of a month, with loans funding on the second Wednesday of the month.

20-Year Loan
	Base Rate	Standard Effective Rate	Refinancing Effective Rate
August 2021	1.27%	2.75%	2.79%
July 2021	1.22%	2.70%	2.74%
June 2021	1.29%	2.77%	2.81%
May 2021	1.37%	2.85%	2.89%
April 2021	1.54%	3.02%	3.06%
March 2021	1.52%	3.00%	3.05%
February 2021	1.24%	2.72%	2.76%
January 2021	1.18%	2.66%	2.70%
December 2020	1.11%	2.59%	2.63%
November 2020	1.05%	2.36%	2.37%
October 2020	1.08%	2.40%	2.40%
September 2020	1.05%	2.37%	2.37%
August 2020	0.90%	2.21%	2.22%
25-Year Loan
	Base Rate	Standard Effective Rate	Refinancing Effective Rate
August 2021	1.45%	2.87%	2.91%
July 2021	1.40%	2.82%	2.86%
June 2021	1.47%	2.89%	2.93%
May 2021	1.52%	2.94%	2.98%
April 2021	1.66%	3.08%	3.12%
March 2021	1.63%	3.05%	3.09%
February 2021	1.34%	2.76%	2.80%
January 2021	1.28%	2.70%	2.74%
December 2020	1.21%	2.63%	2.67%
November 2020	1.14%	2.40%	2.40%
October 2020	1.17%	2.43%	2.43%
September 2020	1.15%	2.41%	2,41%
August 2020	1.01%	2.27%	2.27%
10-Year Loan- sold every other month
	Base Rate	Standard Effective Rate	Refinancing Effective Rate
July 2021	0.82%	2.60%	2.66%
May 2021	0.84%	2.62%	2.67%
March 2021	0.91%	2.70%	2.74%*
January 2021	0.67%	2.45%	2.48%*
November 2020	0.65%	2.23%	2.23%
September 2020	0.70%	2.29%	2.29%
July 2020	0.81%	2.40%	2.40%
* Estimate as no 10-year refinancing bonds were sold